/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Collision/ContactTriangles.h
Given a contact point on a triangle, check if it is an edge contact or vertex contact and return vertex indices if so
bool GetEdgeVerticesAtPosition ( const [FVec3](API\Runtime\ChaosCore\Chaos\FVec3) & ContactPosition, [FVec3](API\Runtime\ChaosCore\Chaos\FVec3) & OutEdgeVertexA, [FVec3](API\Runtime\ChaosCore\Chaos\FVec3) & OutEdgeVertexB, int32 & OutVertexIndexA, int32 & OutVertexIndexB, const [FReal](API\Runtime\ChaosCore\Chaos\FReal) BaryCentricTolerance ) const